Properties of the Number 525

Five Hundred Twenty-Five

Basics

Value: 524 → 525 → 526

Parity: odd

Prime: No

Previous Prime: 523

Next Prime: 541

Digit Sum: 12

Digital Root: 3

Palindrome: Yes

Factorization: 3 × 5 ² × 7

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000001101

Octal: 1015

Duodecimal: 379

Hexadecimal: 20d

Square: 275625

Square Root: 22.9128784747792

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primorial base exp-function: digits in primorial base representation of n become the exponents of successive prime factors whose product a(n) is. A276086

Numbers having k prime factors (counted with multiplicity), the largest of which is the k-th prime. A106529

Prime factorization representation of Stern polynomials: a(0) = 1, a(1) = 2, a(2n) = A003961(a(n)), a(2n+1) = a(n)*a(n+1). A260443

Number of strict knapsack partitions of n. A275972

Numbers whose digits are primes. A46034

Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m). A3052

Hexagonal pyramidal numbers, or greengrocer's numbers. A2412

Expansion of 1/((1-x)⁴*(1+x)). A2623

Number of partitions of n if there are two kinds of 1's and two kinds of 2's. A97

a(n) = n² - 4. A28347